Pathophysiological Insights and Multimodal Interventions in Chronic Tinnitus, Anxiety, and Sleep Disorders

Chronic subjective tinnitus (CST) is frequently accompanied by anxiety and sleep disturbances, together forming a self-reinforcing cycle that significantly impairs patients' quality of life and complicates clinical management. This narrative review aims to elucidate the shared pathophysiological mechanisms underlying these interrelated conditions and to evaluate current multidisciplinary therapeutic strategies. Relevant literature was identified through a targeted search of PubMed, Scopus, and Web of Science databases, focusing on recent clinical and translational studies addressing the neurobiology and treatment of CST, anxiety, and sleep disorders. Emerging evidence highlights the involvement of maladaptive auditory-limbic network connectivity, neurotransmitter imbalances (eg, GABA, glutamate, serotonin), dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, autonomic dysfunction, and disruption of circadian and sleep-wake regulatory pathways in the persistence and mutual reinforcement of these symptoms. Multimodal interventions-including cognitive behavioral therapy, sound therapy, pharmacotherapy, neuromodulation techniques, and targeted sleep interventions-have demonstrated synergistic benefits, particularly when tailored to individual neurobiological profiles. From a clinical perspective, recognizing the bidirectional interactions among tinnitus, affective dysregulation, and sleep impairment is essential for developing effective, integrative treatment frameworks. This review underscores the necessity of personalized, mechanism-informed therapeutic approaches and outlines key directions for future research.